Georgina (Canada 2016 Census population 45,418) is a town in south-central Ontario, and the northernmost municipality in the Regional Municipality of York. The town is bounded to the north by Lake Simcoe. Although incorporated as a town, it operates as a township, in which dispersed communities share a common administrative council. The largest communities are Keswick, Sutton and Jackson's Point; smaller communities include Pefferlaw, Port Bolster, Udora and Willow Beach.
The town was formed by the merger of the Village of Sutton, the Township of Georgina and the Township of North Gwillimbury in 1971, and was incorporated in 1986. North Gwillimbury had previously been part of Georgina, but became its own township in 1826. It took its name from the family of Elizabeth Simcoe, née Gwillim.

The Town of Georgina operates under a ward system, and its municipal council consists of the mayor, regional councillor (known procedurally as deputy mayor) and a councillor for each of the five wards. The current council consists of:

Canadian Wrestling Hall of Fame member Whipper Billy Watson was a lifelong resident, and he spearheaded the campaign to build the Georgina Cultural Centre in the 1980s, which also houses the Stephen Leacock Theatre.

Keswick is the birthplace and childhood home of former NHL goaltender Curtis Joseph.